What’s actually inside your pen? 🖊️ #engineering #howitworks

Ever wondered what actually happens inside a clicky pen when you press it? This oddly satisfying 3D animation reveals the hidden engineering and internal mechanism of a standard retractable ballpoint pen. It’s way cooler than you think!
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#shorts #engineering #howitworks #oddlysatisfying #3danimation #science #viralshorts #usashorts

Видео What’s actually inside your pen? 🖊️ #engineering #howitworks канала Mechanical Inventions